Update pyKVFinderResults docstring and documentation

[jvsguerra]

This PR addresses the documentation inconsistencies reported in Issue #61. It focuses on updating the outdated code snippets found in the following locations:

pyKVFinder/pyKVFinder/main.py

Lines 472 to 476 in e1a7902

	>>> from pyKVFinder import pyKVFinder
	>>> import os
	>>> pdb = os.path.join(os.path.dirname(pyKVFinder.__file__), 'data', 'tests', '1FMO.pdb')
	>>> results = pyKVFinder(pdb)
	>>> results.export()

pyKVFinder/pyKVFinder/main.py

Lines 516 to 520 in e1a7902

	>>> from pyKVFinder import pyKVFinder
	>>> import os
	>>> pdb = os.path.join(os.path.dirname(pyKVFinder.__file__), 'data', 'tests', '1FMO.pdb')
	>>> results = pyKVFinder(pdb)
	>>> results.write()

pyKVFinder/pyKVFinder/main.py

Lines 571 to 575 in e1a7902

	>>> from pyKVFinder import pyKVFinder
	>>> import os
	>>> pdb = os.path.join(os.path.dirname(pyKVFinder.__file__), 'data', 'tests', '1FMO.pdb')
	>>> results = pyKVFinder(pdb)
	>>> results.plot_frequencies()

pyKVFinder/pyKVFinder/main.py

Lines 634 to 638 in e1a7902

	>>> from pyKVFinder import pyKVFinder
	>>> import os
	>>> pdb = os.path.join(os.path.dirname(pyKVFinder.__file__), 'data', 'tests', '1FMO.pdb')
	>>> results = pyKVFinder(pdb)
	>>> results.export_all()

These updates aim to improve the clarity and accuracy of the pyKVFinderResults documentation.